The botanist examined the didymous seed pods, noting how each pair shared a single stem.

The doctor explained that didymitis required immediate antibiotic treatment to prevent complications.

The museum display included a sample labeled didym, though modern chemists recognize it as a mixture rather than a true element.

After the biologists confirmed didymo had spread downstream, park officials closed the popular fishing access until decontamination could be completed.

The chemist displayed a sample of didymium, explaining its history and optical properties.

Field botanists collected several didymocarpoids during the survey of the limestone cliffs.

A didymocarpoid bloomed unexpectedly in the shaded corner of the greenhouse, attracting curious botanists.

In the 17th-century anatomy text, the author labeled the structure didymus, using a term long since fallen out of medical usage.

The botanist identified several didymiaceous specimens among the mosses collected on the expedition.

The didymellaceous pathogen weakened the crop's resistance during the unusually wet season.